Clayton New Jersey Area Code

One area code covers Clayton: 856.

The code covering Clayton

Area codes covering Clayton, New Jersey, with what each one primarily serves.
Area code	Primarily serves	In service
856	Camden	1999

Scope the codes matched to Clayton. Source geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot) and LocalCallingGuide NPA list (2026-07 NPA list). Updated 16 July 2026. Overlay relationships come from the numbering-plan authority; the place match is computed.

Which part of town has which code

Clayton has a single code, so there is nothing to divide — every local line carries 856.

ZIP codes for the same city

Postal geography is organised separately from telephone geography, so Clayton’s 1 ZIP code do not map onto the codes above. They are listed in full, with the county each falls in, on the postal side of the site.

Clayton New Jersey ZIP codes →

Nearby places with different codes

These are the closest places to Clayton whose area codes are not the same set. If you are near one of them, a local number may carry a code that is not on the list above.

The nearest places to Clayton covered by a different set of area codes.
City	Distance	Their area codes
Deptford New Jersey area codes	7.5 mi	609, 640, 856
Westville New Jersey area codes	15 mi	609, 640, 856
Haddon Heights New Jersey area codes	15 mi	609, 640, 856
Haddonfield New Jersey area codes	16 mi	609, 640, 856
Hammonton New Jersey area codes	16 mi	609, 640
Cherry Hill New Jersey area codes	17 mi	609, 640, 856
Bridgeton New Jersey area codes	18 mi	609, 640, 856
Camden New Jersey area codes	19 mi	609, 640, 856

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.